Cryosurgical instrumentation.
D002245:Carbon Dioxide / Q000008:administration & dosage; D005617:Chlorofluorocarbons, Methane / Q000008:administration & dosage; D003452:Cryosurgery / Q000295:instrumentation*; D009584:Nitrogen / Q000008:administration & dosage; D009609:Nitrous Oxide / Q000008:administration & dosage
D005617:Chlorofluorocarbons, Methane; D002245:Carbon Dioxide; D009609:Nitrous Oxide; D009584:Nitrogen